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Knorr-Bremse Four Circuit Prot. Valve K011255
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K011255, K 01 12 55, K.01.12.55
Product Overview
The Knorr-Bremse Four Circuit Protection Valve K011255 is a vital component in modern air brake systems for commercial vehicles. Its primary function is to distribute and regulate compressed air across four independent circuits, ensuring that system stability and safety are maintained even in the event of pressure loss in one or more lines. Designed with precision and built to Knorr-Bremse’s exacting standards, this valve guarantees optimal system pressure control and fault tolerance in demanding operating conditions.
Key Features
- OEM Part Number: K011255
- Function: Distributes and maintains air pressure across four braking circuits
- Design: Compact aluminum alloy body with anti-corrosion treatment
- Inlet and Outlet Ports: Standard air brake port configurations
- Features: Integrated pressure protection, unloading valve, and circuit priority logic
- Application: Suitable for EBS and conventional air brake systems
- Certifications: Compliant with ISO/TS 16949 and ECE R13 standards
- Country of Origin: Germany
What’s Included in the Kit
- 1 x Knorr-Bremse Four Circuit Protection Valve (Part No. K011255)
- Protective caps or plugs on ports (as applicable)
- Mounting instructions or technical documentation (available upon request)
- Manufacturer identification label with QR/barcode
Wholesale Buyer Benefits
- Bulk order discounts and price tiering for fleet buyers and resellers
- Ready stock available at AAA Trading’s Dubai facility
- Assistance with custom documentation for export markets
- Consolidation of multi-brand parts for reduced shipping costs
- Dedicated B2B support and reorder facilitation
Applications and Compatibility
The K011255 Four Circuit Protection Valve is designed for use in:
- Heavy-duty trucks and buses equipped with pneumatic brake systems
- Trailers and semi-trailers with air brake and auxiliary systems
- Vehicles requiring separate management of service, emergency, auxiliary, and parking brake circuits
- Compatible with air brake systems from MAN, Scania, Mercedes-Benz, Volvo, Renault, Iveco, and others
Please verify specific fitment through OEM catalogs or by consulting AAA Trading’s technical team.
Warranty and Product Authenticity
- 12-month limited manufacturer’s warranty
- 100% authentic Knorr-Bremse product with traceable lot number
- Delivered in original sealed packaging with factory markings
- Backed by AAA Trading’s product authenticity assurance policy
Why Choose AAA Trading Dubai
- Authorized distributor of European commercial vehicle parts
- Headquartered in Dubai with regional and global shipping capabilities
- Expertise in brake system components and application matching
- Competitive pricing, rapid turnaround, and professional customer service
- Trusted by service centers, fleets, and parts resellers across the Middle East, Africa, and Asia
Shipping & Delivery
Shipping & Delivery Policy
Shipping & Delivery Policy
At Triple A Trading, we are committed to fast, reliable shipping to ensure our clients receive their automotive spare parts without unnecessary delays. We are a registered business in Dubai, United Arab Emirates. For more information about business registration, please visit the Dubai Trade Portal.
Order Processing Time
All orders are processed within 1-3 business days following payment confirmation. You'll receive a notification once your order has been dispatched.
Shipping Options & Delivery Timeframes
- Standard Shipping – Delivered within 5-7 business days
- Expedited Shipping – Delivered within 3-5 business days
- Express Shipping – Delivered within 1-3 business days
Shipping Costs
Shipping rates are calculated based on your order’s weight and destination. The total shipping cost will be clearly displayed at checkout before finalizing your order.
International Shipping
We proudly serve customers across Africa, Europe, Asia, and the Middle East. Please note that international shipments may be subject to customs duties and taxes, which are the customer’s responsibility.
Triple A Trading works diligently to ensure smooth cross-border deliveries, minimizing delays due to customs or political complications. For more details, please refer to the Dubai Customs official website.
Order Tracking
Once your order ships, you'll receive a tracking number via email, which can be used to monitor the shipment through the carrier's website.
Delivery Issues
If you experience any issues with your delivery, such as delays or missing items, please contact our customer service team:
- Email: sales@triple-a-trading.com
- Phone: +971 50 443 1871
We’re here to assist you and ensure your order is resolved quickly and efficiently.
Thank you for choosing Triple A Trading – Your trusted source for quality automotive spare parts, delivered with speed and care.
Frequently Asked Questions (FAQ)
Frequently Asked Questions (FAQs)
What is the Knorr-Bremse Four-Circuit Protection Valve K011255 used for?
The Knorr-Bremse K011255 four-circuit protection valve is designed to distribute and protect compressed air in commercial vehicle brake systems. It ensures that failure in one circuit does not affect the performance of the others, maintaining safe operation of essential vehicle systems.Which vehicles is the K011255 valve compatible with?
This valve is commonly used in European trucks and buses, including models from MAN, Volvo, Mercedes-Benz, and IVECO. Always verify compatibility using the OE number or consult our technical team with vehicle details.Is K011255 an original Knorr-Bremse component?
Yes, this is a 100% original Knorr-Bremse product. We supply parts directly from certified distribution networks, ensuring authenticity and warranty protection.Can I order the K011255 valve in bulk at wholesale pricing?
Yes, bulk ordering options with discounted wholesale pricing are available. Please email us at sales@triple-a-trading.com with your quantity and delivery location for a custom quote.Are there any OE or cross-reference numbers for this part?
Primary reference: K011255. Other equivalent numbers may be available depending on vehicle manufacturer or brake system design. Contact us for assistance in cross-referencing with your current part number.Do you provide global shipping for this valve?
Yes, we offer worldwide shipping from our warehouse in Dubai. We partner with reputable freight carriers to ensure fast and secure delivery, along with full export documentation support.What is the average lead time for delivery of bulk orders?
Standard lead time is 2–5 business days depending on order volume and destination. Expedited options are available for urgent shipments.Is there a warranty on the Knorr-Bremse K011255 valve?
Yes, we provide a 12-month warranty against manufacturing defects. Warranty applies only if the valve is installed correctly and used under normal operating conditions.Do you offer technical support or installation assistance?
Yes, our technical team can assist with installation guidance, torque settings, and circuit setup verification to ensure the part integrates correctly into your braking system.How do I verify the authenticity of the K011255 protection valve?
All genuine Knorr-Bremse parts come with a unique serial number and/or QR code for verification via the manufacturer’s platform. We can also provide documentation to confirm origin upon request.Related products
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Knorr-Bremse Four Circuit Prot. Valve II37460N00
II37460N00, I I37 460 N00, I.I37.460.N00
Product Overview
The Knorr-Bremse Four Circuit Protection Valve II37460N00 is a high-performance air distribution and safety component engineered to regulate and protect multiple air brake circuits in heavy-duty commercial vehicles. It divides the air supply into four independently controlled circuits—typically service front, service rear, parking, and auxiliary systems—while ensuring pressure balance and circuit isolation in the event of a failure. Trusted by vehicle OEMs worldwide, this valve delivers optimal reliability and safety compliance.Key Features
- OEM Part Number: II37460N00
- Function: Regulates and protects 4 pneumatic brake circuits
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- Integrated non-return valves and pressure limiting features
- High-grade aluminum alloy body with corrosion-resistant finish
- Compact, modular design for direct chassis or frame installation
- Air ports conform to ISO 7628 / DIN 74324 standards
- Factory-tested for leak-tightness and functional response
- Complies with ECE R13 and international brake safety regulations
- Country of Origin: Germany
What’s Included in the Kit
- 1 x Knorr-Bremse Four Circuit Protection Valve II37460N00
- Sealed in OEM box with part label and traceable serial number
- Mounting and air port diagram included (digital copy on request)
- Ready-to-install, no additional accessories required
Wholesale Buyer Benefits
- Attractive bulk pricing through AAA Trading Dubai
- Fast availability from UAE stock for GCC and global shipments
- Support for cross-referencing older valve part numbers
- Dedicated commercial support for tenders and fleet orders
- Flexible packaging and logistics for export orders
Applications and Compatibility
The II37460N00 is compatible with:- Commercial trucks, buses, and trailers with air brake systems
- Used in OEM builds from Mercedes-Benz, MAN, Scania, Volvo, Renault, DAF, and Iveco
- Ideal for aftermarket replacement of Knorr-Bremse and other equivalent valves
- Suitable for both rigid and articulated commercial vehicles
Warranty and Product Authenticity
- 12-month limited warranty from Knorr-Bremse
- 100% genuine and traceable OEM component
- Meets or exceeds all relevant OE and international safety standards
- Sealed packaging with serial and batch control
Why Choose AAA Trading Dubai
- Authorized distributor of genuine Knorr-Bremse pneumatic components
- Strong inventory position in brake valves, dryers, and air modules
- Strategic logistics hub in Dubai for fast export across regions
- Technical guidance and customer-focused after-sales support
- Serving fleets, workshops, and parts distributors across Middle East, Africa, and South Asia
Knorr-Bremse Four Circuit Prot. Valve I73329
I73329, I 73 32 9, I.73.32.9
Product Overview
The Knorr-Bremse Four Circuit Protection Valve I73329 is a critical pneumatic component that ensures the safe and reliable distribution of compressed air to the vehicle’s primary brake circuits. Engineered to protect individual air circuits from pressure failure in other parts of the system, this valve maintains system stability and enhances overall braking safety. Suitable for use in trucks, trailers, and buses, this valve meets stringent OEM and safety standards.Key Features
- OEM Part Number: I73329
- Function: Distributes and protects compressed air circuits (typically four)
- Design: Modular construction for ease of maintenance and replacement
- Material: High-grade aluminum housing with corrosion-resistant finish
- Operating Pressure: Nominal 10 bar system compatibility
- Factory-set pressure thresholds for circuit isolation
- Compact, lightweight design suitable for modern vehicle layouts
- Compliance: Meets ECE R13 and ISO 7638 standards
- Country of Origin: Germany
What’s Included in the Kit
- 1 x Knorr-Bremse Four Circuit Protection Valve (Part No. I73329)
- OEM product packaging with barcode and batch number
- Technical data sheet or installation guide (available on request)
Wholesale Buyer Benefits
- Wholesale pricing and support for fleet operators and resellers
- Stock availability at AAA Trading's Dubai distribution center
- Fast processing for bulk and container shipments
- Support for cross-referencing with OE and aftermarket part numbers
- Reliable logistics and export documentation assistance
Applications and Compatibility
The I73329 Four Circuit Protection Valve is designed for use in:- Heavy-duty trucks, trailers, and buses equipped with air brake systems
- Commercial vehicles from OEMs such as MAN, Volvo, DAF, Mercedes-Benz, Scania, and Renault
- Applications where protection of four separate air brake circuits is required
- Suitable for OEM installation or aftermarket system maintenance
Warranty and Product Authenticity
- 12-month limited manufacturer warranty
- 100% genuine Knorr-Bremse component
- Supplied in factory-sealed packaging with serial tracking
- Fully compliant with OE safety and quality standards
Why Choose AAA Trading Dubai
- Reliable source of genuine European commercial vehicle components
- Strategically located in Dubai for regional and global distribution
- Specialized in Knorr-Bremse air, brake, and pneumatic systems
- Expert support team available for technical queries and sourcing
- Serving clients in the Middle East, Africa, and South Asia
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